Home / 105,164.40-157,746.60-31,292.40

Finding the Fourth Proportional to 105,164.40, 157,746.60 and 31,292.40

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Solution

The fourth proportional to 105,164.40, 157,746.60 and 31,292.40 is: 46,938.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,164.40 : 157,746.60 = 31,292.40 : x
  2. Step 2: Convert to fraction form
    105,164.40/157,746.60 = 31,292.40/x
  3. Step 3: Cross multiply
    105,164.40x = 157,746.60 × 31,292.40
  4. Step 4: Simplify right side
    105,164.40x = 4,936,269,705.84
  5. Step 5: Solve for x
    x = 4,936,269,705.84/105,164.40
  6. Step 6: Final answer
    x = 46,938.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.